Ds. Theodoropoulos et al., Prevalence of upper respiratory symptoms in patients with symptomatic gastroesophageal reflux disease, AM J R CRIT, 164(1), 2001, pp. 72-76
This study evaluated the prevalence of upper respiratory symptoms (URS) amo
ng patients with symptomatic gastroesophageal reflux disease (GERD). Sevent
y-four subjects with heartburn completed a URS questionnaire before dual-pr
obe, 24-h esophageal pH monitoring. The URS questionnaire was also complete
d by 74 normal volunteers without previous or current symptoms of GERD. Eso
phageal pH monitoring results were classified as normal, distal, or proxima
l and distal gastroesophageal reflux using standardized criteria. Mean URS
scores (+/- SD) were 8.31 +/- 3.98 in the 52 subjects with GERD and 4.57 +/
- 3.57 in the 22 subjects with negative pH probe studies, p = 0.02. Subject
s with negative pH probe studies and normal volunteers scored similarly on
the URS questionnaire. Reflux episodes/24 h correlated with URS scores, r =
0.47, p = 0.0001. Seventy-five percent of subjects with upper reflux, 68%
of subjects with lower reflux, 36% of subjects with normal esophageal pH st
udies, and 9% of normal volunteers reported laryngeal symptoms for at least
5 d/mo. Sixty-nine percent of subjects with upper reflux, 50% of subjects
with lower reflux, 31% of subjects with normal pH studies, and 14% of norma
l volunteers reported nasal symptoms for at least 5 d/mo. URS are frequent
among subjects with GERD.